Improvement in sash-balances



LEWIS GOODWINS IMPROVED SAsH BALANCE AND I 116 302 WIND ow FASTEINERPATENTFDJUNQT187i WITNESSES-J IINVENTOR.

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LEWIS eoonwrn, on BANGOR, MAINE.

IMPROVEMENT lN SASH-BALANCES.

Specification forming part of Letters Patent No. 116,302, dated June 27, 1871.

To all whom it may concern:

Be it known that I, LEWIS GOODW'IN, of Bangor, in the county of Penobscot and State of Maine, have invented new and useful Improvements in Window-Sash Balance and Window- Fasteners, of which the following is a specification:

' This invention relates to improvements upon the sash-balance described and shown in Letters Patent issued to myself on the 30th day of March, 1869, and numbered 88,471; and the invention consists in an improved sliding rod and its connection with the sash-cord; also,in the stops, and their combination with the sliding rod, and in th releasing mechanism of the lower stop; as also in an elastic buffer combined with the cord; as will be hereinafter more fully described.

Figure 1 is a side elevation, showing the window' closed. Fig. 2 is a similar elevation, showing the upper sash dropped. Fig. 3 is a'central vertical section taken in the direction of the plane of the glass. Fig. 4 is a transverse section taken on line U V, Fig. 1. Fig. 5 is a transverse section taken on line W X, Fig. 1. Fig. 6 is a transverse section taken on line Y Z, Fig. 1.

Similar letters of reference indicate correspond ing parts in the several figures.

in the drawing, A represents the stile of the upper, and B the stile of the lower sash, while 0 is the sash-cord, which, passing over a pulley, D,at the top of the casing, has its ends secured perspectively to stiles A B, as shown and hereinafter described. In the stiles of the upper sash is formed a longitudinal groove, a, in which the rod 1) slides freely. This rod is formed of thin sheet metal in atrough-like semicircular form, as shown by its cross-section in Figs. 4, 5, and 6. The method of uniting cord 0 with rod 12 is to insert the cord in the hollow of the rod, when the latter is closed firmly upon the cord, as shown in Fig. 4, and a small pin passing through both secures themtogether. At the lower end of the cord a small section of rubber or other elastic tubing, marked 0, is secured upon the cord by means of a disk of metal and a screw inserted in the end of the cord, as shown in section. This buffer is insertedin the cavity f in thelower sash, thereby attaching the cord to the lower sash, yet serving as a cushion to prevent shocks when the upper sash is suddenly lowered, while the lower one remains closed. 9 is a metallic bar inserted in the upper sash across bar 1), as shown. This bar 9 is doubled or folded at its center, as shown in Figs. 1 and 5, the fold occupying a position in the cavity of bar I) the lower end of this latter being closed or pressed together, as shown in Fig. 1, it will be apparent that although bar b slides freely, yet the closed end would be arrested by the intervening portion of bar 9, thereby preventing the former from being entirely withdrawn from the stile. h is a wide spring, serving the double purpose of holding the lower end of bar I) in place, and also preventing the upper sash from falling when closed. In Fig. 3 a small notch or recess is shown in bar b, inwhich the curved end of spring h engages when the upper sash is closed. j is a stud, formed forked, as shown in Fig. 6, in order that it may bear against spring h, yet not impeding the free movement of rod 1), and by pressing against the projecting end of this stud the spring h is disengaged from catch iin rod 12, thereby allowing the upper sash to move vertically independent of rod b, as before described.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination of cord 0 and its hollow rod 1), substantially in manner as and for the purposes specified.

2. The combinationof bar 9 and tube b, when constructed and arranged to operate substantially as and for the purposes specified.

3. The combination of bar b, spring h, and stud j, when arranged to operate substantially in manner as and for the purposes specified.

4. In combination with cord C, the elastic buffer c, substantially in manner as and for the purposes specified.

Witnesses: LEWIS GOODWIN.

H. L. MITCHELL, H. B. FARNHAM. 

